Final 2003
West Nile Virus Activity in the United StatesThis
map reflects surveillance findings occurring between
January 1, 2003 through December 31, 2003
as reported to CDC's ArboNET system for public distribution by state and local
health departments.

West Nile virus maps reflect surveillance reports released by state and local health departments to CDC's ArboNET system for public distribution. Map shows the distribution of avian, animal, or mosquito infection occurring during 2003 with number of human cases if any, by state. If West Nile virus infection is reported to CDC from any area of a state, that entire state is shaded.Data
table:Avian, animal or mosquito WNV infections were reported to CDC ArboNET from the following states in 2003 : Alabama, Arizona, Arkansas, California,
Colorado, Connecticut, Delaware, District of Columbia,
Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky,
Louisiana, Maine, Maryland, Massachusetts, Michigan,
Minnesota,
Mississippi, Missouri, Montana, Nebraska, New Hampshire,
New Jersey, New Mexico, New York, North Carolina, North
Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South
Carolina, South Dakota, Tennessee, Texas, Utah, Vermont,
Virginia, West Virginia, Wisconsin and Wyoming.